I think it's your mental attitude. So many of us start dreading age in high school and that's a waste of a lovely life. 'Oh... I'm 30, oh, I'm 40, oh, 50.' Make the most of it.
I am responsible. Although I may not be able to prevent the worst from happening, I am responsible for my attitude toward the inevitable misfortunes that darken life. Bad things do happen; how I respond to them defines my character and the quality of my life. I can choose to sit in perpetual sadness, immobilized by the gravity of my loss, or I can choose to rise from the pain and treasure the most precious gift I have ? life itself.